Terminator Firewall Pass Through- Eliminates Gromet 01232023 For Holley

Terminator Firewall Pass Through for Holley

This terminator firewall pass through replaces traditional rubber grommets to route wiring safely through a vehicle firewall, cross-referencing part number 01232023.

Overview

The terminator firewall pass through provides a secure, sealed passage for wiring harnesses passing through metal bulkheads. This heavy-duty terminator firewall pass through eliminates the need for temporary grommets that can degrade over time. Automotive builders rely on this terminator firewall pass through to protect delicate wiring from sharp metal edges and engine heat.

Built For Performance

• Eliminates unstable rubber grommets that dry rot and fail over time.
• CNC-machined structure ensures precise tolerance and durability under the hood.
• Secures wiring looms tightly to prevent chafing against raw firewall edges.
• Creates a clean, professional aesthetic in custom engine bays.

Fits These Machines

• for Holley Terminator wiring setups

On-The-Job Use

• Routing main EFI wiring harnesses from the engine bay to the cabin.
• Protecting low-voltage signal wires from mechanical wear and heat exposure.
• Sealing firewall openings against fumes, noise, and moisture transfer.

Specs At A Glance

Good To Know

Q: What diameter hole must be drilled for installation? A: This unit is designed to fit standard firewall clearance holes specified for the 01232023 template. Always measure the main body thread before drilling your firewall.

Q: Can this pass-through seal out engine bay fumes? A: Yes, when properly tightened, it forms a tight barrier that helps block heat, moisture, and engine fumes from entering the cabin.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.